Hub



FIG. 1 is a perspective view of a hub of the new design;

FIG. 2 is another perspective view of the hub of FIG. 1;

FIG. 3 is a front elevational view of the hub of FIG. 1;

FIG. 4 is a rear elevational view of the hub of FIG. 1;

FIG. 5 is a left side elevational view of the hub of FIG. 1, the right side elevational view being a mirror image thereof;

FIG. 6 is a top plan view of the hub of FIG. 1; and,

FIG. 7 is a bottom plan view of the hub of FIG. 1.

The portions of the Figures shown in broken lines are not part of the claimed design and are for illustration only. 

The ornamental design for a hub, as shown and described. 